Home / 679,913.82-938,304.10-374,012.94

Finding the Fourth Proportional to 679,913.82, 938,304.10 and 374,012.94

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Solution

The fourth proportional to 679,913.82, 938,304.10 and 374,012.94 is: 516,150.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,913.82 : 938,304.10 = 374,012.94 : x
  2. Step 2: Convert to fraction form
    679,913.82/938,304.10 = 374,012.94/x
  3. Step 3: Cross multiply
    679,913.82x = 938,304.10 × 374,012.94
  4. Step 4: Simplify right side
    679,913.82x = 350,937,875,055.05
  5. Step 5: Solve for x
    x = 350,937,875,055.05/679,913.82
  6. Step 6: Final answer
    x = 516,150.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.